Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nfsd: resetting the write verifier for deferred writeback errors Both nfsdvfswrite and nfsdcommit call filemapcheckwberr to detect deferred writeback errors. However, neither rotates the server’s write verifier nn-writeverf wh...

SUSE CVE-2026-53393

In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's write verifier nn-writeverf when this check...

K000163273: Linux kernel vulnerabilities CVE-2026-53393 and CVE-2026-53398

Security Advisory Description CVE-2026-53393 In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's...

CVE-2026-53393

A flaw was found in the Linux kernel's Network File System NFS daemon. This vulnerability occurs when the NFS daemon fails to reset the write verifier during deferred writeback errors for UNSTABLE writes. A remote attacker, acting as an NFS client, could exploit this by performing operations that...

nfsd: reset write verifier on deferred writeback errors

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AZL-92600 CVE-2026-53393 affecting package kernel for versions less than 6.6.145.2-1

In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's write verifier nn-writeverf when this check...

CVE-2026-53393

In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's write verifier nn-writeverf when this check...

CVE-2026-53393

In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's write verifier nn-writeverf when this check...

CVE-2026-53393 nfsd: reset write verifier on deferred writeback errors

In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's write verifier nn-writeverf when this check...

CVE-2026-53393 nfsd: reset write verifier on deferred writeback errors

In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's write verifier nn-writeverf when this check...

CVE-2026-53393

In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's write verifier nn-writeverf when this check...

EUVD-2026-45515

In the Linux kernel, the following vulnerability has been resolved: nfsd: reset write verifier on deferred writeback errors nfsdvfswrite and nfsdcommit both call filemapcheckwberr to detect deferred writeback errors, but neither rotates the server's write verifier nn-writeverf when this check...

CVE-2026-53393

CVE-2026-53393 (Linux kernel, NFS daemon) is resolved in the Linux kernel. The issue was that nfsd_vfs_write() and nfsd_commit() did not rotate the server’s write verifier (nn->writeverf) when deferred writeback errors occurred, unlike other durable-storage-failure paths which call commit_rese...

PT-2026-61098

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Network File System server nfsd where the server fails to rotate the write verifier nn-writeverf when deferred writeback errors are detected via the filemap check ...